OpenSSL升级

升级版本为OpenSSL-1.0.1t,操作系统为ubuntu12.04

查看已安装的版本信息：

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#openssl version
 OpenSSL 1.0.1g 01 Jul 2014

1 这里把openSSL升级到1.0.1t版本：

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# wget https://www.openssl.org/source/openssl-1.0.1t.tar.gz
# tar zvxf openssl-1.0.1t.tar.gz 
# cd openssl-1.0.1t
# ls
# ./config shared zlib
# make
# make install
# /usr/local/ssh/bin/openssl version
 OpenSSL 1.0.1t 3 May 2016

2 替换旧的OpenSSL：

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# mv /usr/bin/openssl /usr/bin/openssl-old
# mv /usr/include/openssl /usr/include/openssl-old
# ln -s /usr/local/ssl/bin/openssl /usr/bin/openssl
# ln -s /usr/local/ssl/include/openssl/ /usr/include/openssl
# echo "/usr/local/ssl/lib" >> /etc/ld.so.conf
# ldconfig 
# openssl version
 OpenSSL 1.0.1t 3 May 2016

3 Ubuntu系统升级OpenSSL：

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# apt-get update
# apt-get install openssl libssl